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Home >> Volvo >> 1981 >> 242 GLT, Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> Tune-Up >> Tune-Up - 4 CYL >> Compression Pressure >> Notes

Compression Pressure: Notes

Check compression with engine at normal operating temperature, all spark plugs removed, throttle valve wide open and at normal cranking speed (250-300 RPM). Crank engine at least 6 "puffs" per cylinder.